POE kusintha ukadaulo ndi zoyambitsa zabwino

TheKusintha kwa PoEndi chosinthira chomwe chimathandizira magetsi ku chingwe cha netiweki.Poyerekeza ndi chosinthira wamba, cholumikizira magetsi (monga AP, kamera ya digito, ndi zina zotero) sichiyenera kuyimitsidwa ndi mawaya amagetsi, ndipo kudalirika kwa netiweki yonse ndikokwera.
Kusiyana pakati pa ma switch a PoE ndi masiwichi wamba
Kusintha kwa PoE ndikosiyana ndi switch wamba,Kusintha kwa PoEsangathe kupereka ntchito kufala kwa lophimba wamba, komanso kupereka mphamvu kotunga ntchito kumapeto ena a chingwe maukonde.Mwachitsanzo, pali kamera yowunikira digito (imafuna magetsi kuti igwire ntchito moyenera), koma sichimalumikizidwa ndi magetsi, koma yolumikizidwa ndi switch wamba kudzera pa chingwe cha netiweki.Pankhaniyi, kamera sikugwira ntchito.Ngati kamera si chikugwirizana ndi magetsi, koma kufala maukonde chingwe chikugwirizana ndiPoEsinthani, kamera imatha kugwira ntchito bwino.
PoE imagawidwa kukhala yokhazikika komanso yopanda muyezo.Wokhazikika awona ngati zida zolumikizidwa ndi netiweki zili ndi poE polandila mphamvu.Ngati ilipo, idzayendetsedwa, ngati sichoncho, sichidzagwiritsidwa ntchito ndikungopereka kutumiza deta.Zomwe sizili zoyenera zidzaperekedwa mwachindunji ndi mphamvu.Ngati ulalowu sunapezeke, zida zitha kutenthedwa.
POE kusintha luso ndi ubwino
Pali miyezo iwiri yosinthira ma PoE pamsika, IEEE802.3af ndi 802.3at, yomwe imatanthauzira mphamvu yamagetsi ya 15.4W ndi 30W, koma chifukwa cha kutayika kwa njira yotumizira, magetsi enieni ndi 12.95W. ndi 25.5W, voliyumu yake ndi DC 48v.
Pogwiritsa ntchito aKusintha kwa PoEyomwe imathandizira muyezo wa IEEE802.3af, mphamvu ya chipangizo choyendetsedwa ndi mphamvu sichingadutse 12.95W;mofananamo, pogwiritsa ntchito kusintha kwa PoE kwa muyezo wa IEEE802.3at, mphamvu ya chipangizo chamagetsi sichikhoza kupitirira 25.5W.
Nthawi zambiri, chosinthira cha PoE chomwe chimathandizira IEEE802.3af/panthawi yomweyo, magetsi amatha kusintha.Mwachitsanzo, ngati ilumikizidwa ndi chipangizo cha 5W, imapereka mphamvu ya 5W;ngati chikugwirizana ndi 20W chipangizo, ndiye amapereka 20W mphamvu.
Ma switch a PoE ndi masiwichi omwe amathandizira magetsi ku zingwe za netiweki.Poyerekeza ndi masiwichi wamba, ma terminals (monga ma APs, makamera a digito, ndi zina zambiri) safunikira kukhala ndi mawaya kuti apereke magetsi, ndipo ndi odalirika pa intaneti yonse.Kusintha kwa PoE sikungangopereka ntchito yotumizira yosinthira wamba, komanso imaperekanso ntchito yoperekera mphamvu kumalekezero ena a chingwe cha netiweki.
Chipangizo chakumbuyo cha PoE chimangofunika chingwe chimodzi cha netiweki, chomwe chimasunga malo ndipo chimatha kusunthidwa mwakufuna (chosavuta komanso chosavuta), kupulumutsa ndalama.
Malingana ngati kusintha kwa PoE kulumikizidwa ku UPS, kumatha kupereka mphamvu kuzipangizo zonse zakumbuyo za POE pamene mphamvu yazimitsidwa.Ogwiritsa ntchito amatha kusakaniza ndi kusakaniza zida zoyambirira ndi zida za PoE pamanetiweki, ndipo zida izi zitha kukhala limodzi ndi zingwe za Ethernet zomwe zilipo.